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Wooden board knowledge

Moldy wood will discolor the surface of the wood and sapwood, but the moldy discoloration range is more shallow and its discoloration is caused by colored spores. Since mold spores grow only on the surface of the wood, the mold of the wood is limited to the surface of the wood or to a layer near the surface.

Mildew often makes wood green, white, black, and occasionally other colors. The discoloration caused by moulds is often flocculent or spotted. In warm and humid climates, or in poorly ventilated environments, mold spores deposited on the surface of wood are prone to grow and grow.The fungi causing woody mildew are Trichoderma sp., Penicillium spp., Aspergillus spp., Mucro, and the like. The most important Trichoderma fungi are Trichoderma viride. The surface of the wood infected by this fungus is green. The species of Penicillium and Aspergillus belong to many species, common species such as Aspergillus niger. After the wood infects the mould, the surface is black and sometimes even in pieces.

The adaptability and endurance of moulds to the environment and substrates is stronger than that of Lanthanum and decaying bacteria. Molds are also very resistant to chemical drugs and even when they come into contact with certain toxic chemicals, they can grow. Mildew can still be found on some preserved materials.

As a result of the mildew of the wood, the surface of the wood is only discolored, and the discoloration is shallow, so it can be removed with a brush, or it can be removed by peeling off the surface layer. Mildew has little effect on the quality of the wood itself, so it is usually not considered as a defect. However, when the mold invades the wood, the permeability of the liquid to the wood can be increased, thereby promoting the formation of blue change.

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